Waight D, Hijazi Z M
Section of Pediatric Cardiology, Department of Pediatrics, The University of Chicago Children's Hospital and Pritzker School of Medicine, Chicago, IL.
Catheter Cardiovasc Interv. 2000 Jan;49(1):55. doi: 10.1002/(sici)1522-726x(200001)49:1<55::aid-ccd11>3.0.co;2-n.